Lander weather in December: Lander, Wyoming: normal highs, lows, rain and records for December
Lander in December has a normal high of 33°F and a normal low of 10°F, a daily mean of 22°F, falling from 37°F on the 1st to 32°F by the 31st. Measurable precipitation falls on 4 days in a normal December, 0.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 0°C and low of −12°C, 16 mm of precipitation and 24 cm of snow in December.
- NOAA stationLander Airport
- Station IDUSW00024021
- Location42.82°N 108.73°W
- Elevation5,592 ft (1,704 m)
- Population7,451
- Jan 33° 10°
- Feb 37° 13°
- Mar 49° 23°
- Apr 56° 30°
- May 66° 39°
- Jun 78° 48°
- Jul 88° 55°
- Aug 86° 54°
- Sep 75° 45°
- Oct 59° 32°
- Nov 44° 20°
- Dec 33° 10°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lander in December?
The normal high is 33°F and the normal low 10°F, for a daily mean of 21.6°F. December is 10.5°F cooler than November and 0.3°F warmer than January. December is the 11th warmest month of the year in Lander and the 9th wettest. Across the month the normal high falls 5°F, from 37°F on December 1 to 32°F on December 31. From one year to the next December's mean temperature typically moves about 4.2°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 17°F and 26°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 15%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 37°F | 14°F | 15% | 8% |
| December 8 | 34°F | 11°F | 15% | 8% |
| December 15 | 32°F | 10°F | 14% | 8% |
| December 22 | 32°F | 9°F | 14% | 7% |
| December 31 | 32°F | 9°F | 13% | 7% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 24)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 37°F | 14°F | 15% | 8% | 9 h 20 min |
| December 2 | 36°F | 13°F | 15% | 8% | 9 h 20 min |
| December 3 | 36°F | 13°F | 15% | 8% | 9 h 10 min |
| December 4 | 35°F | 13°F | 15% | 8% | 9 h 10 min |
| December 5 | 35°F | 12°F | 15% | 8% | 9 h 10 min |
| December 6 | 35°F | 12°F | 15% | 8% | 9 h 10 min |
| December 7 | 34°F | 12°F | 15% | 8% | 9 h 10 min |
| December 8 | 34°F | 11°F | 15% | 8% | 9 h 10 min |
| December 9 | 34°F | 11°F | 15% | 8% | 9 h 10 min |
| December 10 | 33°F | 11°F | 14% | 8% | 9 h 10 min |
| December 11 | 33°F | 11°F | 14% | 8% | 9 h 10 min |
| December 12 | 33°F | 10°F | 14% | 8% | 9 h 10 min |
| December 13 | 33°F | 10°F | 14% | 8% | 9 h |
| December 14 | 33°F | 10°F | 14% | 8% | 9 h |
| December 15 | 32°F | 10°F | 14% | 8% | 9 h |
| December 16 | 32°F | 10°F | 14% | 8% | 9 h |
| December 17 | 32°F | 9°F | 14% | 8% | 9 h |
| December 18 | 32°F | 9°F | 14% | 7% | 9 h |
| December 19 | 32°F | 9°F | 14% | 7% | 9 h |
| December 20 | 32°F | 9°F | 14% | 7% | 9 h |
| December 21 | 32°F | 9°F | 14% | 7% | 9 h |
| December 22 | 32°F | 9°F | 14% | 7% | 9 h |
| December 23 | 32°F | 9°F | 14% | 7% | 9 h |
| December 24 | 32°F | 9°F | 14% | 7% | 9 h |
| December 25 | 32°F | 9°F | 14% | 7% | 9 h |
| December 26 | 32°F | 9°F | 13% | 7% | 9 h |
| December 27 | 32°F | 9°F | 13% | 7% | 9 h |
| December 28 | 32°F | 9°F | 13% | 7% | 9 h |
| December 29 | 32°F | 9°F | 13% | 7% | 9 h |
| December 30 | 32°F | 9°F | 13% | 7% | 9 h |
| December 31 | 32°F | 9°F | 13% | 7% | 9 h |
- Normal high
- 33°FDecember average
- Normal low
- 10°FDecember average
- Precipitation
- 0.63 inmonth total
- Days with precipitation
- 40.01 inch or more
- Snowfall
- 9.3 inmonth total
- Nights at 32°F or colder
- 31
- Daylight
- 9 h 20 min to 9 hDecember 1 to December 31
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024021; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Lander in December?
On a given December day the chance of 0.01 inch or more is 14% on average, highest around December 1 (15%). In all, 0.63 in falls on 4 days of a normal December.
In a normal December in Lander, 31 nights fall to freezing, 15 days stay below freezing all day and snowfall averages 9.3 inches.
Snow falls on 5 days in a normal December, and an inch or more covers the ground on 20 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024021.
How humid and windy is Lander in December?
At 3 p.m. the normal temperature is 27°F with 54% relative humidity and a dew point of 13°F; at 6 a.m. it is 16°F with 70% humidity. The wind averages 4.7 mph, most often from the northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 16°F | 8°F | 70% | 4.6 mph | 77% |
| 9 a.m. | 16°F | 8°F | 70% | 4.3 mph | 74% |
| noon | 24°F | 12°F | 59% | 4.3 mph | 76% |
| 3 p.m. | 27°F | 13°F | 54% | 5.1 mph | 75% |
| 6 p.m. | 22°F | 12°F | 63% | 5.5 mph | 75% |
| 9 p.m. | 20°F | 10°F | 67% | 4.9 mph | 77% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024021. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Lander?
The warmest December temperature on Lander's official record (since 1891) is 65°F, on December 10, 1933; the coldest is −40°F, on December 19, 1924. The wettest December brought 2.06 in (1909); the snowiest, 34.6 inches (2007).
The December mean against the 1991-2020 normal of 21.6°F: 2021 31.5°F (+9.9), 2022 16.4°F (−5.2), 2023 24.4°F (+2.8), 2024 32.9°F (+11.3), 2025 36.5°F (+14.9). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 31.5°F | +9.9°F | 0.37 in |
| 2022 | 16.4°F | −5.2°F | 1.32 in |
| 2023 | 24.4°F | +2.8°F | 0.71 in |
| 2024 | 32.9°F | +11.3°F | 0.04 in |
| 2025 | 36.5°F | +14.9°F | 0.28 in |
Source: records: ACIS, NWS threaded record LNDthr; recent months: ACIS, station USW00024021. Records and recent months use complete months only.
How does December in Lander compare across Wyoming?
Across the 71 places PlainClimate covers in Wyoming, December normal highs run from 24°F in Bondurant to 43°F in Yoder; Lander's is 33°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.